ES2874588T3 - Disc brake for a utility vehicle and brake lining kit - Google Patents

Abstract

Disc brake (10) for a utility vehicle, with a brake caliper (1) surrounding a brake disc (2), configured as a disc caliper, which is attached to a stationary brake backing plate (6) and It has a central opening (9) above the brake disc (2), two brake linings (3, 3') arranged in the brake caliper (1), movable in the opposite direction, each having a lining support (4) and a friction lining (5) fixed thereon, of which a brake lining (3) on the action side or on the clamping side can be pressed by means of a clamping device at via at least one brake piston against the brake disc (2), as well as at least one recovery device, with which the brake caliper (1) can be returned after a displacement and release of the brake related to the braking, the recovery equipment presenting a separation equipment (8) that engages in the opposite brake linings (3), which acts uniformly. against the respective clamping direction with spring-loaded spreading elements engaging in the respective liner support plate (4), the spreading device (8) being arranged in the central opening (9), the locking elements engaging separation directly or indirectly outside the friction pads (5) into at least two contact areas of the brake linings (3) arranged at a distance from one another from the center, the contact areas each having a contact surface and a support surface (4c), on which the separation elements are movably arranged, characterized in that the separation device (8) has spring arms (20), two of which in each case bear against each other. an associated lining support plate (4), the spring arms (20) being connected to each other in the central area of the opening (9), the spring arms (20) being connected with a retaining bow ( 21), which is co located on the brake support plate (6), the spring arms (20) being configured as two pairs of spring arms (20), the pairs being arranged opposite each other in the transverse direction of the opening (9) in such a way that the inner ends, which point towards the center of the opening (9), are fixed to the retention arch (21), their outer free ends interacting with the lining support plate (4) of the brake linings ( 3, 3'), the inner ends of each pair of spring arms (20) being connected in each case to a sleeve-shaped bell connector (20c), the bell connector (20c) being bent around a section central section (26a) of the retaining bow (21) and being rotatably and displaceably mounted in the central section (26a), which has a circular cross section, each spring arm (20) being configured, on the end side , with a pressure section (20a), which is configured in its d longitudinal direction with an elongated hole (22), which is a guide section of the spring arm (20) of the spreading device (8), each pressure section (20a) resting in each case on a support surface (4c) of a respective lining support plate (4), the elongated holes (22) of each pressure section (20a) interacting in each case with a contact surface of the lining support plate (4), presenting a pin ( 24) fixedly connected to the lining support plate (4) the contact surface, which interacts with the respective elongated hole (22), of the lining support plate (4), the bearing surfaces (4c) running ) in each case tangentially with respect to the brake disc (2) and lying in a plane.

Description

DESCRIPTION

Disc brake for a utility vehicle and brake lining kit

The invention relates to a disc brake for a utility vehicle according to the preamble of claim 1. The invention also relates to a set of brake linings.

In a generic disc brake, also known as a disc caliper brake, in the case of braking by means of clamping equipment, which can be actuated pneumatically or by electric motor, a brake lining is pressed from the side action against a brake disc on the side of the vehicle. In the subsequent course of the braking process, the brake caliper moves, with respect to the brake disc, against the direction of clamping of the brake lining on the dragging and compressing action side of the opposite brake lining, on the side reaction, against the other side of the brake disc.

After releasing the brake, in the case of the known disc brake, the brake caliper remains in this position, in which the brake linings, at least on the other hand the brake lining on the reaction side, albeit without pressure, without However, it rests with drag on the brake disc. The residual drag moments that appear in this way in the running of the brake linings have a disadvantageous effect in this regard, since they lead to high fuel consumption as well as to a reduction in the useful life of the components involved, in particular brake disc and brake linings.

It is true that a slight release of the brake linings takes place during driving, for example by an oscillating impact of the brake disc as well as by jerks and lateral accelerations in bends. However, these effects are not sufficient to effectively prevent the mentioned residual drag moments. To address this problem, in the generic document DE 102007001213 a disc brake with recovery equipment is disclosed, which is arranged on one of the guide beams, through which the brake caliper is movably retained in the brake support plate, and having a spring recovery element, by means of which the brake caliper moves to an initial position.

In principle, this construction has proven itself. However, the use of this known recovery equipment in compressed air actuated disc brakes of heavy utility vehicles can result in problems, since in this case wide limits of varying influences by component tolerances and component deformations are effective, that do not allow in any case a safe function of this recovery equipment.

Comparable problems result in the case of a disc brake as discussed in DE 102012 006 111 A1. In this respect, a recovery device is arranged on the side opposite the clamping device, facing the brake lining on the reaction side, whereby an efficient, in particular automatic, recoil of the brake caliper is achieved with, at the same time, the minimum interference in the rigidity of the system.

In any case, the recovery equipment acts on the brake caliper, the brake support plate functioning as a counter support.

Document DE 43 01 621 A1 describes a floating caliper disc brake with a stationary brake backing plate, which has two support arms projecting above the outer edge of a brake disc, with brake shoes arranged on both sides of the brake disc, respectively having a friction lining and a back plate, which are supported against the support arms, with a floating caliper axially displaceably guided on the axial brake support plate, which surrounds the brake shoes brake and has a specific actuation device for pressing the brake shoes against the brake disc, with a spring arrangement that acts on the brake shoes axially in the brake release direction, which after braking favors the adjustment of a clearance between brake shoes and brake disc. The spring arrangement has at least one extension spring, which is fixed as a whole in a non-displaceable manner to a support arm of the brake backing plate in the axial direction, so that the clamping to a section of the support arm takes place. located above the outer edge of the brake disc, and in such a way that the extension spring has at least two spring arms, which rest elastically on the rear plates of the brake shoes in the axial direction.

Document US2014 / 0339026 A1 describes an extension spring, comprising a locking arm that connects the extension spring with a brake component, a recoil arm; and a prestressing device, which is arranged between the locking arm and the return arm, the prestressing device comprising six loops or more in spiral, which store energy during a brake activation and, as soon as the braking process has concluded , remove the brake components (brake lining). A brake caliper is indicated in the form of a fist caliper, which is not a disc caliper. This is suitable for a passenger car, but not for a vehicle utilitarian 11.

Additional recovery kits with extension springs are known from US4491204 A and WO96 / 08663A1.

The invention is based on the objective of improving a disc brake of the generic type in such a way that with the constructionally simpler means the service life in particular of the brake linings and of the brake disc is increased and overall the costs of the brake disc are reduced. functioning.

A further object is to provide a matching brake lining set.

This objective is solved by means of a disc brake with the characteristics of claim 1.

The additional objective is solved by means of a set of brake linings with the characteristics of claim 27.

A disc brake according to the invention for a utility vehicle, with a brake caliper surrounding a brake disc, configured as a disc caliper, which is fixed to a stationary brake backing plate and has a central opening above of the brake disc, comprises two brake linings arranged on the brake caliper, movable in the opposite direction, each having a lining support plate and a friction lining fixed thereon, of which a brake lining On the action side or the clamping side, it can be pressed by means of a clamping device through at least one brake piston against the brake disc, as well as at least one recovery device, with which the caliper brake can be returned after a brake travel and release related to braking, the recovery equipment featuring a separating equipment that engages opposing brake linings, acting uniformly against the respective clamping direction with spring spacer elements engaging the respective liner support plate. The separation equipment is arranged in the central opening, the separation elements engaging directly or indirectly outside the friction linings in at least two contact areas of the brake linings arranged at a distance from each other with respect to the center, the areas presenting contact surface in each case a contact surface and a bearing surface, on which the separating elements are movably arranged. By means of the design according to the invention of the disc brake, a synchronous recoil of both brake linings is achieved as well as a recoil of the brake caliper when the brake is released, affecting the synchronization both to the restoring forces and the travels. recovery. In this respect, the restoring force acts against the respective clamping direction of the two brake linings, that is to say on the brake lining on the reaction side towards the rear of the caliper and on the brake lining on the rear side. action toward the caliper head, with groove formations relative to the brake disc.

The attachment of the separation equipment to the two brake linings is conveniently carried out on the lining support plates, in particular on the side facing the friction lining attached to it or on the opposite rear side. To prevent an inclination of the respective brake lining with the recoil, the separating element engages either in the center, in an upper exposed edge area of the lining support plate, or symmetrically in two contact areas to the right and to the left.

A brake lining set according to the invention for the disc brake according to the invention has at least two brake linings with in each case a lining support plate and a friction lining placed on the brake support plate. liner and separation equipment listed above. Outside the friction linings, the lining support plate has at least two contact areas arranged at a distance from one another relative to the center in each case a contact surface and a bearing surface. This results in the advantage of implementing various functions (axial and radial spring force transmission, spring end guide) in a narrow space.

In one embodiment, the spacing elements extend from a central area in the center of the opening from the inside out to the contact areas disposed at a distance from one another from the center. It is also possible that the separating elements extend from a central area in the center of the opening from the inside out to the contact areas arranged evenly spaced from one another with respect to the center.

In this way, the spacing device is arranged centrally on the brake caliper, also being arranged within an enveloping curve of a rim of an associated wheel.

The two spacer elements are connected to each other in the center (with respect to the backing plate horns). Therefore, an equal spring force (within a small tolerance range) can be ensured on both the input side and the output side. Different elastic forces between the outlet and inlet side, which can result in oblique wear, they are minimized through meshing on one side of a spring respectively by lining.

A further embodiment provides that the central area of the aperture extends on either side of a virtual center of the aperture approximately parallel to the plane of the brake disc over a length in a range of 30 to 50% of a longitudinal axis of the opening. This results in an advantageous adaptation of the spring forces. According to the invention, the separation device has spring arms, of which in each case two bear against an associated lining support plate, the spring arms being connected to each other in the central area of the opening , which simplifies installation during assembly and maintenance.

According to a further idea of the invention, the separating device has separating elements that act in the opposite direction, preferably that act elastically, in particular in the form of spring elements. According to an idea of the invention, the separation equipment is in operative connection with the brake backing plate, which forms a counter support and in which the brake linings are movably mounted thereon relative to the brake disc.

To this end, according to the invention a retaining arch is provided, which covers the brake disc in the perimeter area, up to the brake backing plate horns of the brake backing plate which delimit a lining compartment on both sides. and is arranged, with respect to the thickness of the brake disc, in the center with respect to it. The retention arch is not a liner retention bracket, but an additional component.

In one embodiment, the detent arch may be attached to two opposing stirrups, connected to the brake backing plate, which enables a simple attachment.

Alternatively, the retaining arch may be attached to at least the two brake backing plate horns of a lining compartment, while the spacer elements that mesh in the two brake linings are connected to the retaining arch. This therefore forms a centering device, which can also be designed in a different way in conjunction with the brake backing plate as a fixed bearing.

Preferably, the retaining arch is configured in the shape of a C around its contour, with a central leg covering the brake disc to the extent mentioned and two end legs bent in the same direction thereof towards the support plate horns. brake pads, of which in each case one is attached to a brake backing plate horn of the corresponding lining compartment.

As an alternative, the end legs can each have a flange, into which stems of the brake backing plate horns are inserted. With this, a simple installation is achieved. Of course, the rods can also be inserted separately in advance into the brake backing plate horns, the flanges having corresponding holes.

By means of the retention arch, to which the separating device is fixed with its spring arms, an automatic centering of the brake caliper is carried out after a brake release, that is, after finishing a braking process, repositioning itself, by means of immobilized positioning in this sense of the separation equipment, the brake linings in such a way that the brake caliper is centered with respect to the brake disc.

Otherwise, the separation equipment is designed in such a way that it is effective throughout the full wear value of the brake linings.

Since the force attack points on the brake linings vary with increasing wear, the functional parts of the separating equipment that are in contact with the brake linings are configured such that they rest slidably against the backing plate. lining of the respective brake linings.

To ensure a secure support of the spring legs or, in the case of another design variant of the spring arms, also with rattling loading while driving, the spring arms rest on the upper edge, relative to the base of the liner compartment, of the liner support plate, also in a sliding manner, as described above.

In a corresponding design of the separating device, the use of lining retaining springs can also be dispensed with, which, as is known from the prior art, are fixed on the upper edge of the lining support plates and on the lining support plates. which a lining retaining bracket is supported so that the respective brake lining is retained with pretension in the lining compartment of the brake backing plate.

The structural implementation of the separation equipment according to the invention can be different from the constructive point of view, an essential advantage resulting in that it is possible to essentially do without moving components, with the exception, of course, of the spring separation elements, which for the function perform a spring deflection.

Possibly now dispensing with moving parts has an inherently increased service life for the separating equipment, as does the low number of required components, which also results in extremely economical production and assembly.

According to the invention, the spring arms are configured as two pairs of spring arms, the pairs being arranged opposite each other in the transverse direction of the opening, so that with the inner ends, pointing towards the center of the opening, are fixed to the retention arch, their outer free ends interacting with the lining support plate of the brake linings. This results in a compact and efficient structure.

According to the invention, in this sense the inner ends of each pair of spring arms are connected in each case to a sleeve-shaped bell connector, the bell connector being bent around a central section of the retaining arch and being rotatably and movably positioned in the central section, which has a circular cross section. As a result, the spring arms are advantageously arranged as pairs on the holding arch, so that they can move independently of one another.

According to the invention, each spring arm is configured, on the end side, with a pressure section, which is configured in its longitudinal direction with an elongated hole, which is a guide section of the spring arm of the equipment. from separation. Thereby an additional relative movement possibility can be achieved.

Furthermore, in this sense, each fastening section can rest in each case on a bearing surface of a respective lining support plate, the elongated holes of each pressing section interacting in each case with a contact surface of the lining plate. lining support. This results in an advantageous guide in the radial direction.

For further improved guidance, according to the invention a pin is provided which is fixedly connected to the lining support plate, which presents the contact surface, which interacts with the respective elongated hole, of the support plate lining, the bearing surfaces running tangentially with respect to the brake disc in each case and being in one plane.

- The separation equipment comprises two separation elements, a first separation element acting on a first lining and a second separation element acting on a second lining. The two spacer elements are connected to each other in the center (with respect to the backing plate horns). Therefore, an equal spring force (within a small tolerance range) can be ensured on both the input side and the output side. Different elastic forces between the outlet and inlet side, which can result in oblique wear, are minimized through engagement on one side of a spring respectively by lining.

- A uniform force application of the springs on the action side and on the reaction side, or on the pressure piece and gripper side, can be implemented by means of a flexible adjustment of the central web. In addition, the flexible central web can compensate for slight geometric misalignments of the disc, lining and backing plate.

- By means of the central soul, the active recovery equipment can be easily positioned and it can be retained by means of the lining retention bracket. Advantageously, in the case of a liner change, the recovery kit can be removed and exchanged without problems.

- By using the entire lining compartment between the backing plate horns, separating elements or springs with a very low elasticity index can be used to apply fairly constant forces as the lining wears out. Due to the long strokes of the spring, the spacing elements can be tolerant of elastic forces. Spring travel results in a constant spring rate with low tolerances.

- In a preferred embodiment variant only two springs are used.

- The partitions can be formed from inexpensive and geometrically flexible sheets. - By moving with different pivot points, a lower elasticity index can be reproduced. Advantageously, many turns are not necessary (expensive, it takes up a lot of space).

Additional advantages are:

Adjustability (of centering)

On the lining side the spring constant can be adapted, whereby it can be better adapted differently for indoor / outdoor and the environment (at boundaries) - Installation via central centering brackets - Unevenly compensated force generation Eventually "active" gripper centering

Active liner suspension via "fork" at the end of the spider

A further embodiment provides that the separation device has at least one additional recovery element, which, in addition to the point of attack / points of attack of the spring arms, engages in a further point of attack on the respective support plate. lining of a brake lining. This is advantageous, since this can cause a sustained recoil of the brake linings. This can prevent a residual drag moment.

In one embodiment, the at least one recovery member with a section in a lower area of the lining support plate of a clamping side brake lining on a pressure side of the lining support plate may be attached to a retaining stem, the at least one retrieval element with an additional section being positioned in a lower area of a bottom plate of a brake caliper holding section. In this way, a pulling force can be advantageously exerted through the recovery element on the brake lining.

In this sense, the at least one retrieval element can be configured as a spring element with a central section, two spring arms, two fixing sections with in each case a U-shaped flange, the central section being fixed to the liner support plate retaining stem, and each spring arm with the fixing section being positioned on the bottom plate. This is a simple and compact configuration. Attachment to the liner support plate can be done quickly and easily, for example, via a claw connection on a peg of the liner support plate.

In a variant, the central section and the two spring arms are formed by a spring wire, the central section being attached to a support in a lower area of the liner support plate. This advantageously results in weight savings.

In an alternative embodiment, the at least one retrieval element may comprise a first spring arm with a clamping end and a connection, a second spring arm with a connection and a fixing section with an opening, the first arm being fixed of spring on the pressure side of the brake lining lining support plate of the clamping side with its clamping end to a holder, the second spring arm being connected via a connection to the first spring arm and arranged in parallel with respect to this, and the fixing section with its opening being fixed in front of an opening of a bearing housing of the brake backing plate coaxially thereto between the brake backing plate and a bearing side member of the brake caliper. In this way, a stationary and easy immobilization between existing components can be made possible.

In yet another alternative, the at least one recovery element can be arranged centrally as a central recovery element in the vertical direction on the pressure side of the lining support plate of the clamping side brake lining and is fixed both to the upper side as well as to the lower side of the lining support plate, a stationary immobilization of one end of the central recovery element being formed centrally in a bridge connector of the clamping side of the brake support plate.

For this, different variants can be made. In this way, the at least one central retrieval element can have two lateral longitudinal members arranged in parallel to one another, the upper ends of which as clamping sections firmly grip the upper side of the lining support plate like staples. , the two longitudinal members being provided at their lower ends with clamping sections, which firmly grip the lower side of the liner support plate like staples, the longitudinal members being connected in their upper area by means of a transverse connector, and being connected in their lower area in each case by means of a transverse connector to in each case an additional longitudinal member, the two longitudinal members extending upwards in each case in parallel with respect to the outer longitudinal members and being connected at their upper ends to a transverse connector, in which a longitudinal member ce ntral and extends parallel to the other longitudinal members downward beyond the clamping sections and ends in its own clamping section, which is immobilized in the bridge connector on the clamping side of the brake backing plate. This enables a particularly simple assembly without additional components.

A further variant provides that the at least one recovery element is arranged centrally as a central recovery element in the vertical direction on the pressure side of the lining support plate of the brake lining on the clamping side and is fixed in a area of the underside of the liner support plate, a stationary lock of one end of the central retrieval element being formed at a retaining end of the fastening side of a liner retaining stirrup.

In this sense, the at least one central retrieval element can have a spring body in the form of a wire with two longitudinal members arranged in parallel with respect to each other, the longitudinal members being connected by means of a transverse connector, the transverse connector in the lower area of the liner support plate, and end sections of the longitudinal members of the spring body being placed through a retainer at the retaining end of the liner retainer clamp side . This structure is simple and easy.

An alternative to this provides that the at least one central recovery element has a spring body in the form of a wire with two longitudinal members arranged in parallel with respect to each other, the longitudinal members being connected by means of a transverse connector, being retained the transverse connector through a retainer and end sections of the longitudinal members of the spring body being retained in the lower area of the liner support plate.

And in another alternative to this, the at least one central retrieval element may have a wire-shaped spring body with an end section and a clamping section, the end section being retained in the lower area of the plate plate. liner support and the fastening section being positioned at the retaining end of the fastening side of the liner retaining bracket.

However, the at least one central retrieval element may also have a spring plate with an end section and a clamping section, the end section being retained in the lower area of the liner support plate and the fastening section at the retaining end of the fastening side of the lining retaining bracket.

With these variants, a particularly advantageous adaptation to different applications with different spring forces is possible.

In yet another embodiment, the at least one recovery member may be fixed with a section in a lower area of the rear side brake lining support plate on the pressure side of the lining support plate, interacting the at least one recovery element with an additional section with a brake backing plate horn of the stationary brake backing plate. In this way, the rear-side brake lining can also be provided with a suitable recovery element in a simple way.

In this sense, the retrieval element can comprise a central section with two connecting sections, two spring arms with in each case a spring end, two additional connecting sections and two additional spring arms with in each case a spring end. staple, the central section with the connecting sections positioned to the left and right of it and the spring arms positioned in each case therein being arranged in a lower edge area on the pressure side of the lining support plate , the additional connection sections being arranged in the lower corner areas on the pressure side of the lining support plate and being connected to the additional vertical spring arms, each extending in a lateral area on the side pressure of the liner support plate, the clamp ends of each additional spring arm being attached, encircling an inclined side section, to the plate. lining support a, and the spring ends in each case being in contact with a brake backing plate horn.

In this regard, it is advantageous that the retrieval element can be placed on the liner support plate in a simple manner via staples.

In yet another embodiment, provision is made for the separation device to have at least one additional recovery element, which is arranged between the underside of the rear brake lining lining support plate and a rear caliper part of the brake lining. brake caliper. In this way, the rear-side brake lining can be repositioned with the support of the additional recovery element to prevent a residual drag moment. In this sense, the at least one additional recovery element can be configured as a leaf spring type with a spring body with in each case a spring end, the one spring end being hinged in a lower area of the plate lining support of the rear side on its pressure side to a retaining section and the other spring end being hinged to a fixing section of the rear caliper part of the brake caliper. In this way, a pulling force can also be exerted on the rear-side brake lining.

In an alternative embodiment, the separating device has at least one additional retrieval element with two opposing spring arms, each spring arm being positioned with its upper end in each case in a central section through a connecting arc, being fixed the central section of the retrieval element to a central section of the retaining arch of the separating equipment, and in each case a free end of each spring arm being in contact with in each case a pressure leg with the respective support plate lining of each brake lining. This results in a simple structure, exerting itself on each brake lining by a respective recovery element a compression force to promote the recovery of the brake linings.

To this end, provision can be made for the at least two additional retrieval elements to be arranged in each case in an elongated intermediate space between a friction lining and a lining side of the respective lining support plate, the feet of the lining being in contact. pressing in each case with the lining side of the respective lining support plate and in each case exerting a compressive force on the brake linings in the direction away from the brake disc. This is advantageous since the brake linings are not modified or are only modified to a lesser extent.

A further embodiment envisages that in the lower area of each lining support plate at least one guide element is provided, which has a fixing section and a guide section fixed thereto with a support section, the at least being fixed. minus one respective guide element to the clamping section on the pressure side of the respective liner support plate such that the respective support section rests on the respective liner compartment bottom. In this way, an inclination of the brake linings can be advantageously avoided during the reversal, since a bearing surface of the brake linings in the lining compartments can be enlarged by means of the guide elements.

In a further embodiment, the lining support plate of a clamping side brake lining may be provided with at least one recovery element. In this way, coding can also be possible.

In this way, also the lining support plate of a rear-side brake lining can be provided with at least one recovery element.

One embodiment of the brake linings provides that in each case an elongated interspace is arranged between a friction lining and a lining side of the respective lining support plate, whereby a simple contact is created for the brake arms. additional recovery elements spring.

In a further embodiment, the liner support plates can be provided with at least one guide element in the lower area on their pressing sides, whereby a tilt can be prevented or considerably reduced.

Further advantageous embodiments of the invention are characterized in the dependent claims. Exemplary embodiments of the invention are described below by means of the attached drawings.

They show:

Figures 1-2 perspective views of an embodiment of a disc brake according to the invention with recovery equipment;

FIG. 3 is a perspective view of a first functional group of the recovery equipment of the exemplary embodiment of the disc brake according to FIG. 1;

Figures 4-6 schematic detailed representations of the first functional group according to Figures 1-3 in different partial views;

Figures 7-8 perspective views of a second functional group of the recovery equipment of the exemplary embodiment of the disc brake according to Figure 1;

Figures 9-17 perspective views of variants of the second functional group of the recovery equipment;

FIG. 18 a schematic sectional view of a further variant of the second functional group of the recovery equipment; and

figure 19 a schematic partial sectional view of the disc brake according to the invention according to figure 1 with guide elements.

The terms "top", "bottom", "left", "right" refer to the respective arrangements in the figures.

An "upper side" and a "lower side" of a brake lining 3, 3 'or of a lining support plate 4 always refer to the installation situation of the respective brake lining 3, 3'. In this regard, the underside of the respective brake lining 3, 3 'lies in the radial direction of a brake disc rotational axis 2a closer to the upper side of this brake lining 3, 3', as is clearly deduced, for example, from figure 11 Figures 1, 1a and 2 show perspective views of exemplary embodiments of a disc brake 10 according to the invention with recovery equipment from different angles of visibility from above.

A brake caliper 1 overlaps a brake disc 2 with a brake disc rotary axis 2a. The brake caliper 1 can be positioned with respect to the brake disc 2 axially displaceable in the direction of the brake disc rotation axis 2a on a brake bearing plate 6, for which the brake caliper 1 is mounted on guide beams not shown, which are connected to the brake backing plate 6 held stationary on the vehicle.

In figure 1 the brake backing plate 6 with the brake disc 2, its brake disc rotation axis 2a and the brake linings 3, 3 'is shown in a view from a clamping side. A fixing side 6a of the brake backing plate 6 is connected to a stationary component (not shown) of a vehicle to be assigned. Furthermore, the brake backing plate 6 has bearing housings 6b for the guide beams (not shown) for mounting the brake caliper 1 and a curved bridge connector 6c on the clamping side.

Furthermore, in FIG. 1 a separating device 8 with four spring arms 20 and a retaining arch 21 is shown. In this case, the separating device 8 is made up of two identical spring arms 20 connected to each other in the central area, as with a retaining arch 21 which is fixed to the brake backing plate 6, namely to the brake backing plate horns 25, via stirrups 21a. For the axial securing of the retaining arch 21, on the bracket 12, the respective end of the retaining arch 21, clamps 13 are provided with clamping against each other.

In this sense, the spring arms 20 bear on two opposite end areas of the lining support plate 4, namely, on an edge area projecting on the upper side. The ends of the spring arms 20 are also curved, so that a sliding on the lining support plate surface is possible without problems when the brake is held and released. In this sense, by means of the pre-tension resulting from the clamping, a separation of the brake linings 3, 3 'is possible after a brake release.

The separation equipment 8 is explained in detail below in another embodiment.

The brake caliper 1 comprises a clamping section 11, a caliper rear part 12 and two traction struts 13. The clamping section 11 runs with one side parallel to the plane of the brake disc 2 on one side of the brake disc. brake 2. On the other side of the brake disc 2, also running parallel to the brake disc 2, the rear caliper part 12 is arranged. The rear caliper part 12 is connected in the clamping section 11 a, at each case, one end with, in each case, a traction strut 13. In this respect, the traction struts 13 run essentially at right angles to the clamping section 11 and to the gripper rear part 12.

The clamping section 11 has an inner space in which a not shown clamping device of the disc brake 10 is arranged. An opening in the inner space points towards the brake disc 2 and is closed with a plate, which is called a plate plate. background 19 (see figure 1).

The clamping section 11, the rear caliper part 12 and the traction struts 13 establish between each other in this arrangement a central opening 9, which covers the brake disc 2. The opening 9 presents an imaginary longitudinal center line, which lies in the plane of the brake disc 2 and connects the imaginary centers of the traction struts 13. In addition, the opening 9 has an additional imaginary transverse center line, which connects an imaginary center of the clamping section 11 to a center The imaginary center line of the rear part of the gripper 12. The longitudinal center line and the transverse center line intersect at an imaginary center point, which is called in this case the virtual center of the opening 9.

In the brake backing plate 6, the brake linings 3, 3 'are arranged in so-called lining compartments between the respective two brake backing plate horns 25 and rest with sections of their lower sides on the respective bottom of 6d lining compartment. This can be clearly recognized in figure 1. The brake linings 3, 3 'can be pressed against the brake disc 2 on both sides in case of braking. In this regard, each brake lining 3, 3 'has a lining support plate 4 and a friction lining 5 attached thereto on the side facing the brake disc 2 on a lining side 4a (see Fig. 4), which in operation, that is to say during braking, has been pressed against the brake disc 2. The other side of the lining support plate 4 is hereinafter referred to as the pressure side 4b (see also FIG. 4 ).

The brake linings 3, 3 'can be reached through the central opening 9 for a change and for maintenance. These can be inserted through this central opening 9 into their associated lining compartments and can be removed again from them. Liner compartments are set in each case laterally by brake backing plate horns 25, the brake linings 3, 3 'being in each case with partial sections of their lower sides in a lining compartment bottom 6d (see FIG. 11).

An arrow of rotation around the axis of rotation of the brake disc 2a indicates a main rotation direction for the forward movement of a vehicle to which the disc brake 10 is associated. With respect to the main rotation direction of the brake disc 2 , on the disc brake 10 an input side ES and oppositely an output side AS are established. Correspondingly, the brake backing plate horns 25 on the input side ES are called the input side brake backing plate horns 25 and on the outlet side AS the output side brake backing plate horns 25 .

A lining retaining bracket 16 is arranged above the brake linings 3, 3 'in the transverse direction of the opening 9 or in the direction of the axis of rotation of the brake disc 2a between the clamping section 11 and the part rear caliper 12. A retaining end 16a of the fastening side of the lining retaining bracket 16 is fixed in a retaining section 14 to the fastening section 11 of the brake caliper 1, a retaining end 16b of the brake caliper being established opposite rear side of the lining retaining bracket 16 to a retaining section 15 of the back of clip 12. The clamping end 16b of the rear side of the lining retaining bracket 16 is further fixed by means of a clamp 18a of a staple element 18, which is positioned in the rear side brake lining 3 ', and is secured against release by means of a securing element 17 (not described in more detail).

The lining retaining bracket 16 here presses with sections on its underside on the clamping elements 18 of the two brake linings 3, 3 'and thus on the lining retaining springs 7, by means of which brake linings 3, 3 'are retained in their lining compartments. The lining retaining springs 7 are held in each case on the lining support plates 4 at shoulders 31.

Braking is carried out by means of the clamping equipment arranged in the clamping section 11 of the brake caliper 1 in a receiving space, for example with a brake lever that is positioned in a chuck of the brake caliper 1. During braking, the associated brake lining 3, called the action-side or also the clamping-side brake lining, first comes into contact with the brake disc 2. In the subsequent course it moves in the opposite way by means of of reaction forces that appear from the brake caliper 1, with drag of the brake lining 3 'on the reaction side, until it comes to bear with friction also on the brake disc 2. The brake lining 3' on the reaction side reaction is also called the rear-side brake lining and is distinguished in addition to the clamping-side brake lining 3 by the reference symbol 3 '.

After a brake release, the two opposite brake linings 3, 3 'are separated by means of the brake disc recovery device 2 until the latter runs freely relative to the brake linings 3, 3'.

Figure 3 represents a perspective view of a first functional group of the recovery equipment of the embodiment of the disc brake according to Figure 1. Figures 4-6 show schematic detailed representations of the first functional group according to Figures 1-3 in different partial views.

The recovery kit is made up of two functional groups in this case. The first functional group comprises the at least one separation equipment 8, the second functional group having at least one recovery element. The two functional groups are present in this case together and mutually support each other. However, it is also possible that only one of the two function groups can be used.

The first functional group meshes with the separation equipment 8 in the upper area of the lining support plates 4 of the opposing brake linings 3, 3 'acting uniformly against the clamping direction. The second functional group exerts in each case compressive and / or tensile forces on the brake linings 3, 3 ', also against the clamping direction, by means of the recovery element / recovery elements in the area center and / or in the lower area of the lining support plate 4 of the opposite brake linings 3, 3 '. In this way, the brake linings 3, 3 'are simultaneously subjected to restoring forces by the restoring equipment both in their upper areas and in their central and / or lower areas.

The separating equipment 8 comprises a retention arch 21 and two separating elements, which are two identical pairs of spring arms 20. The retention arch 21 is stationary and forms a retention device for the pairs of spring arms 20.

The retaining arch 21 is designed in this case as a C-shaped wire and is configured, for example, with a circular cross section.

The retention arch 21 comprises a central section 26a in a central area of the opening 9. The central section 26a is arranged, with respect to the thickness of the brake disc 2, in the center with respect to it. The central section 26a is followed on each side by a central leg 26 which, like the central section 26a, runs in each case in an arc in the circumferential direction of the brake disc 2 coaxially with respect to it. In this way, the retaining arch 21 extends from the center of the opening 9 on both sides in each case to a brake backing plate horn 25 of the brake lining lining compartment 3 on the clamping side.

At each end of the central arm 26 is placed an end leg 27, which is bent 90 ° with respect to the central arm 26 and is directed towards the respective brake backing plate horn 25. Each end leg 27 then runs parallel with respect to to the brake disc shaft 2a and is then bent downwards approximately 90 ° towards in each case a fixing section 27a. Each fixing section 27a is fixed in a bore 25a of each brake backing plate horn 25 and thus forms the retention device of the retention arch 21 with the spacer 8 on the brake backing plate. 6.

In this regard, the retaining arch 21 forms in this sense a centering device for the brake caliper 1, just as the brake backing plate 6, on which the retaining arch 21 is fixed, forms a stationary part, which with respect to which the brake caliper 1 is movably mounted, so that after a brake release and a separation of the separating device 8, that is, a pressure separation of the brake linings 3, the brake caliper Brake 1 is guided to a centered position.

The two spring arms 20 of each pair of spring arms 20 are configured with mirror symmetry with respect to the central section 26 of the retention arch 21.

The pairs of spring arms 20 are arranged opposite each other in the transverse direction of the opening 9 so that with the inner ends, pointing towards the center of the opening 9, they are fixed to the retention arch 21, their interaction outer free ends with the lining support plate 4 of the brake linings 3, 3 '. In this regard, one pair of spring arms 20 is arranged to the right of the center point of the opening 9, the other pair of spring arms 20 being arranged to the left of the center point of the opening 9.

Figure 4 shows an enlarged representation of the placement of the inner ends of a pair of spring arms 20 in the retaining arch 21. In Figure 5 there is shown an enlarged representation of a pressure section 22a of a free outer end of a spring arm 20 interacting with an associated liner support plate 4. Figure 6 represents a schematic partial section of the disc brake 10 in a vertical plane of the axis of rotation of the brake disc 2a.

The description of one spring arm 20 of the two spring arms 20 of the pair of spring arms 20 applies to the other spring arm 20 of the pair by way of mirror symmetry, as can be clearly deduced from Figures 3 and 4 .

Each spring arm 20 has a multiple bent body with an inner and an outer end. The inner ends of the two spring arms 20 of a pair of spring arms 20 are configured as connecting sections 20b running parallel to each other, which are connected by a common bell connector 20c, with which An attachment of the pair of spring arms 20 to the retaining arch 21 has been formed. In this regard, the central section 26a of the retaining arch 21 runs in the installed state of the separating device 8 between the two connecting sections 20b which run in parallel. The outer free end of each spring arm 20 has an end section 20d with a pressure section 20a positioned thereon with an elongated hole 22 for interaction with the liner support plate 4, as will be explained in more detail at continuation.

The bell connectors 20c are connected on both sides in each case to the connection section 20b, which in each case forms an extension of each spring arm 20, and are bent in the form of a sleeve around the central section 26a of the arch. retainer 21. In this way, each bell connector 20c, together with the two spring arms 20 of this pair of spring arms 20, is rotatably mounted on the central section 26a of the retainer arch 21.

Each bell connector 20c has a housing opening pointing downwards with respect to the brake disc 2 in the longitudinal direction of the central section 26a of the retaining arch 21, which communicates with the outer contour of the central section 26a of the retaining arch 21 The spring arms 20, connected in pairs to in each case a bell connector 20c, are engaged with their respective bell connector 20c on the central section 26a of the retaining arch 21 from above in such a way that the central section 26a is housed in the bell connector housing openings 20c.

The separation equipment 8 also has a clamp with a central core, which in this case has been called longitudinal connector 23. The clamp also comprises four flaps as securing elements 26c and four hold-downs as flares 26b, which should press the clamping arms. spring 20 on liner support plates 4.

The flares 26b rest in each case on both sides at the transition from the central section 26a to the central leg 26 of the retaining arch 21 on the connecting sections 20b of the spring arms 20. In this way, the flares 26b prevent a elevation of the bell connectors 20c from the center section 26a. At the same time, the widenings 26b form an axial stop for the bell connector 20c of the respective pair of spring arms 20 in the direction of the longitudinal axis of the central section 26a in each case from the center of the opening 9 outwards onto the adjacent traction strut 13 (see Figures 1, 2 and 4). The respective two connecting sections 20b of the spring arms 20 point with their free ends towards the center of the opening 9 and are in each case connected to the securing element 26c at their end sections. The securing element 26c is in each case composed of two flaps, which are established in each case with one end in a groove 26d in each case in an end section of the connecting sections 20b. The securing elements 26c thus form a further securing of a respective bell connector 20c against the release of the central section 26a.

The tensioning of the spacer elements is ensured by the flaps as securing elements 26c of the clamp, which fold during assembly and engage in the slot 26d. In this way, the spacer element is secured so that it does not slip towards the center and tilt towards the liner support plate 4.

Since the central web (longitudinal connector 23) of the clamp is also continuous, the clamp can no longer slide axially towards the retaining arc 21. As a result, welding seams or additional immobilisations can be dispensed with. Additionally, the clamp also serves as a spacer.

This makes the separation equipment particularly flexible and adaptable.

The body of each spring arm 20 is bent several times. In this respect, starting from the end of the connection section 20b, which points towards the associated traction strut 13 of the brake caliper 1, the body first runs away from the retention arch 21 towards an S-shaped arch. such that the strut-side end of the S-shaped arch is at a distance from the retaining arch 21, which is, for example, 2.5 times the distance from the connecting section 20b with respect to the retention arch. This end of the S-shaped bow becomes an additional S-shaped bow. The free end of the additional S-shaped arch is the end section 20d and is now spaced from the retention arch 21, for example 2.5 times the distance between the end of the first S-shaped arch and the retention arch twenty-one.

Pressure section 20a is positioned over end section 20d through a connecting section running downward in an arc. In this regard, the pressure section 20a lies in a tangential plane with respect to the brake disc 2.

These pressure sections 20a are configured in their respective longitudinal direction with the elongated hole 22, which serves as a guide section for the spring arms 20 of the separation equipment 8. However, the central longitudinal axes of the elongated holes 22 They run with respect to a longitudinal axis of the associated liner support plate 4 at an angle which is in a range of, for example, greater than 0 ° and less than 45 °. In this regard, the central longitudinal axes of the elongated holes 22 of the pressure sections 20a of a common liner support plate 4 intersect at an imaginary point of intersection, which is located on the side of the support plate of lining 4 in which friction lining 5 is arranged.

The fixing sections 20a, with their elongated holes 22, in the assembled state of the disc brake 10, interact in each case with a pin 24, as can be clearly recognized in figure 5. At each end of a support plate of liner 4, a pin 24 is fixedly connected to liner support plate 4, eg inserted into a bore. In this regard, one end, protruding from the liner support plate 4, of the pin 24 extends through the assigned elongated hole 22 of the respective pressure section 20a of a spring arm 20 of the separating device 8. The central axes of the pins 24 run parallel to each other and perpendicular to the axis of rotation of the brake disc 2a. The elongated holes 22 enable relative movements between the spring arms 20 of the separating device 8 and the brake linings 3, which move in the direction of the axis of rotation of the brake disc 2a. The elastic force of the spring arms 20 makes it possible to release and reposition the brake linings 3 after braking of the brake disc 2, as already described above.

In this case, the fastening sections 20a rest in each case with bearing surfaces 29e on a bearing surface 4c of the respective lining support plate 4. The bearing surfaces 4c of the lining support plate 4 run tangentially with respect to to the brake disc 2 and meet by brake lining 3 in one plane.

The spring arms 20, their pressure sections 20a and their connecting sections 20b with the bell connectors 20c are configured, for example, in one piece as stamped and bent parts made of steel for ribbon springs. The spacing elements, ie the spring arms 20, can be formed in this way, for example, from inexpensive and geometrically flexible sheets.

Figures 7 to 8 show perspective views of a second functional group of the recovery equipment of the exemplary embodiment of the disc brake according to Figure 1.

Figure 7 shows a perspective view of a pressure side 4b of the lining support plate 4 of the brake lining 3 on the clamping or inner side with a recovery element 40.

The pressure side 4b of the lining support plate 4 is the side of the lining support plate 4 that does not carry any friction lining 5 and is in contact either with the clamping equipment or with the back of clamp 12.

The recovery element 40 causes the recovery of the brake lining 3 on the clamping side to be supported by the brake disc 2 after a braking operation. In this regard, the recovery element 40 meshes with a section in a lower area in the lining support plate 4 in addition to the point of attack / points of attack on the upper side of the spring arms 20, the element being connected recovery 40 to another section in a section relatively stationary with respect to the recovery element 40, for example, the brake caliper 1 and / or the brake backing plate 6.

For this, the recovery element 40, in the embodiment according to figure 7, is fixed with a section in a lower area of the lining support plate 4 on its pressure side 4b to a retaining rod 32. Naturally, the retention stem 32 can also be configured in a different design, for example, a screw, a bolt, and the like. Furthermore, the recovery element 40 is positioned with an additional section in a lower area of the bottom plate 19 (see also figure 1) of the clamping section 11 of the brake caliper 1.

To this end, figure 8 shows a schematic perspective representation of the bottom plate 19 and the transparent lining support plate 4 with engagement of the recovery element 40.

The recovery element 40 is in this case a spring element with a central section 41, two spring arms 42, two fixing sections 43 with in each case a U-shaped flange 44 with a leg 44a. The central section 41 and the spring arms 42 are produced, for example, from a flat band spring steel, the fixing sections 43 may be conventional sheet steel.

Center section 41 is centrally connected to retention stem 32 through a pinch / claw connection. On each side, the center section 41 symmetrically converts to the respective spring arm 42. Each spring arm 42 extends from the center section 41 to the left and right in a lower area of the liner support plate 4 along long and shaped corresponding to its contour. The ends of each spring arm 42 are connected in each case to the clamping section 43. Each clamping section 43 is shaped so that the arches of the U-shapes of the flange 44 and the legs 44a are aligned with each other and they are in a tangential direction with respect to the axis of rotation of the brake disc 2a. The leg, pointing in each case towards the base plate 19, of the fixing sections 43 runs outwards as flange 44 and widens so that in each case it has a fixing hole 44b for immobilization by means of fixing screws. the bottom plate 19 thereto. The screws can also be existing fixing screws of the bottom plate 19.

After a braking process, the brake linings 3, 3 'are again pushed apart, on the one hand, by the spring arms 20 of the separating device 8 and thus repositioned by the brake disc 2. At the same time, the recovery element 40, which can also be installed in a prestressed manner, is stressed during the braking process due to its stationary immobilization of its fixing sections 43 on the bottom plate 19 and, after the braking process, you can further remove the brake lining 3 from the brake disc 2 by applying a traction force stored in this way.

Figures 9-17 show perspective views of variants of the second functional group of the recovery kit.

Figure 9 shows a first variant of the second functional group of the recovery equipment according to figure 8. The fixing sections 43 are identical to those of the embodiment according to figure 8. In contrast to this, the recovery element 40 of this first variant is configured by a spring wire. The spring wire has two spring arms 45, which are connected by a central section 45a. The free ends of the spring arms are fixedly connected, eg welded, to the respective clamping section 43 as end sections 45b. The central section 45a is in this case a component of the spring wire and is fixed to a bracket 33 on the underside of the liner support plate 4.

The support 33 is realized in this case as a bolt with a top plate, the diameter of which is greater than the bolt body. The support 33 is arranged in a notch 33a of the lining support plate 4 on its underside. In this regard, the center section 45a has looped around the bolt area between the bottom of the notch 33a and the top plate of the bolt within the notch 33a.

The function of the recovery element 40 is as described in connection with the embodiment according to Figures 7-8. Figure 10 represents a second variant of the second functional group and further shows the right half of the brake lining 3 installed on the clamping side in its lining compartment associated with the brake backing plate 6. The brake lining 3 has been pressed by the liner retaining clip 16, the retaining end 16a of which on the clamping side can be seen, through the liner retaining spring 7, which is retained in the shoulders 31, towards the lining compartment. The brake backing plate 6 is represented in this case with its fixing side 6a, in which a number of non-designated fixing holes are molded for fixing to a stationary part of a vehicle to be assigned. Furthermore, on the right in this case (see FIG. 1), the brake backing plate horn 25 is shown on the outlet side with a bearing housing 6b arranged below it. The bearing housing 6b houses a bearing strut of the longitudinal bearings of the brake caliper 1.

In the second variant, the second functional group comprises two recovery elements 46, of which in figure 10 only the right one is shown on the lower right side of the lining support plate 4. The second recovery element 46 of this A second variant is arranged on the lower left side, not shown in this case but easily imaginable, of the lining support plate 4 with mirror symmetry with respect to the right retrieval element 46 and is constructed accordingly.

The recovery element 46 comprises a first spring arm 47 with a clamping end 47a and a connection, a second spring arm 48 with a connection 48a, and a clamp section 49 with an opening 49a. The first spring arm 47 is inserted with its clamping end 47a in a support 34 and is fixed thereto, for example by means of a clamping / notching effect or the like. The support 34 protrudes in this case in the lower right corner of the pressure side 4b of the lining support plate 4 and can be cast, for example, when the lining support plate 4 is produced.

The first spring arm 47 extends in the lower area in front of the pressure side 4b of the liner support plate 4 from the support 34 to the left in the direction of the center of the liner support plate 4 by a length that corresponds to approximately one third of the length of the liner support plate 4. Then the first spring arm 47 becomes the connection 47b, which is bent outward by approximately 180 °, that is, towards the section of clamping 11.

The connection 47a, for its part, now becomes the second spring arm 48, which extends opposite the first spring arm 47 in parallel to it and beyond the support 34. The connection 48a is configured as a kink type in the direction of the liner support plate 4 and is connected to the fixing section 49.

The fixing section 49 with its large opening 49a is in front of the opening of the bearing housing 6b of the brake backing plate 6 coaxially with respect to it. Therefore, once the brake backing plate 6 has been fixed, the fixing section 49 is also stationary immobilized between the fixing side 6a and the stationary part of the vehicle to be assigned.

Figure 10 further shows a variant of the retaining arch 21, in which the end legs 27 are provided, on the sides facing each other in each case in an end section 28, with a flange 29, in which they are retained. shanks 30, engaging in undesignated bores of the brake backing plate horns 25. The flange 29 rests on a flat front side of the brake backing plate horn 25. The shank 30 may be configured as a rivet and be inserted in the bore of the brake backing plate horn 25. It is also possible that the stem 30 is formed in the brake backing plate horn 25 or is already fixedly inserted previously as a separate component.

The two take-up elements 46 can be produced, for example, as stamped and bent parts from a flat spring steel material.

The function of the two recovery elements 46 has already been described above, the stationary section for immobilizing the recovery elements 46 being in this case the brake support plate 6 and the traction forces being introduced at two corner points of the liner support plate 4 by the support.

3. 4.

Figure 11 represents a third variant of the second functional group with a central recovery element 50.

The recovery element 50 is arranged centrally in the vertical direction on the pressure side 4b of the liner support plate of the clamping side 4 and is fixed to both the upper side and the lower side of the liner support plate 4, a stationary immobilization of one end of the central recovery element 50 being formed centrally in a bridge connector 6c on the clamping side of the brake backing plate 6.

The central retrieval element 50 has two lateral longitudinal members 51 arranged in parallel with respect to each other, the upper ends of which, as clamping sections 51a, firmly grip the upper side of the lining support plate 4 to the left and right of the staple element 18. In the same way, the two longitudinal members 51 are provided at their lower ends with clamping sections 51b of this type, which firmly grip the lower side of the support plate like staples of lining 4. The two longitudinal members 51 are connected below the upper clamping sections 51a by means of a transverse connector 52. On their lower side, the longitudinal members 51 are connected above the lower clamping sections 51b to at each case a transverse connector 53, in which an additional longitudinal member 54 is placed in each case. The additional longitudinal members 54 each extend upwards in parallel with the outer longitudinal members 51 and are connected at their upper ends below the transverse connector 53 to a further transverse connector 55.

In the center of the further transverse connector 55, a central longitudinal member 56 is positioned, which extends between the two longitudinal members 54 downwardly beyond the clamping sections 51b and terminating in a clamping section 56a of its own. This central clamping section 56a is suitably immobilized, eg clamped, centrally on the stationary bridge connector 6c of the brake backing plate 6.

The function is as described above.

In Figures 12 to 15 variants of central recovery elements 50 are shown on the pressure side 4b of the lining support plate 4 on the clamping side of the brake lining 3 on the clamping side together with the lining retaining bracket 16.

The immobilization of the retrieval elements 50 on the lining support plate 4 is arranged in each case in its lower area, the stationary immobilization of the retrieval elements 50 being provided in each case at the retaining end 16a of the clamping side. of the lining retention bracket 16. The function of the recovery elements 50 has already been explained above.

The recovery element 50 according to FIG. 12 has a spring body 57 in the form of a wire with two longitudinal members 58 arranged in parallel with respect to each other. The longitudinal members 58 are in this case connected at the bottom by means of a transverse connector 58a, which is centrally retained under a retaining bracket 35 in the lower area of the liner support plate 4. The longitudinal members 58 and the cross connector 58a may be produced in one piece from spring wire as a bent piece.

An upper end of a longitudinal member 58, in this case the right one, is bent towards the center as an end section 58b by approximately 90 ° and is positioned in a retaining section 59b of a bracket 59 on the retaining end 16a of the clamping side of the liner retaining bracket 16. The upper end of the other longitudinal member 58 (left) is bent in a similar manner towards the center as an end section 58c by approximately 90 ° and is fixed to the bracket 59. This does not It is shown in this case, but it is easy to understand. In this regard, the bent end sections 58b, 58c are arranged offset from one another in the vertical direction.

The support 59 is configured in this case as a stamped and bent part with staple-shaped retention sections 59a, which grip sections of the retention end 16a of the liner retention bracket 16. The retention bracket 35 is fixed in place. bottom side through a leg 35a to the pressure side 4b of the liner support plate 4 and in this case extends approximately one quarter of the vertical length of the liner support plate 4 upwards. In this regard, the transverse connector 58a is retained approximately centrally between the pressure side 4b of the liner support plate 4 and the bottom side of the retaining bracket 35.

In Figure 13 , the recovery element 50 is configured as in Figure 12, but is arranged rotated by 180 °. Cross connector 58a is positioned below retaining end 16a on the clamping side of the Liner retention bracket 16. End sections 58b and 58c are housed in a block-like bracket 36 in suitable retention openings 36a and are torsionally immobilized. The support 36 may be cast when the liner support plate 4 is produced.

Figure 14 shows a further retrieval element 50 with a single spring body 60, which is inserted with a lower end section 60a in a retaining bracket 37 in a retaining opening 37a. The upper end of the spring body 60 is made in a spring coil as a fixing section 60b and is placed on a similar support 59 as described in connection with Figure 12, the placement may be different, for example, if the fixing section 60b is inserted or welded to the support 59. The spring body 60 is provided in this case with two arches with relatively large radii. The retaining bracket 37 can be cast onto the pressure side 4b of the liner support plate 4.

FIG. 15 shows a further variant, the recovery element 50 being designed as a spring plate 61. A width of the spring plate 61 corresponds in this case, for example, to twice the thickness of the lining support plate 4 in the direction of the axis of rotation of the brake disc 2a. The spring plate 61 engages an end section 61a with a retaining bracket 38 in its retaining opening, as already described above. A fixing section 61b of the spring plate 61 is suitably positioned, for example inserted, suspended, welded or the like, to the bracket 59 already described above at the retaining end 16a of the fastening side of the liner retaining bracket. 16.

The previous examples of the second functional group of the separating device 8 related in each case to the brake lining 3 on the clamping side. Of course, they can also be provided on the rear-side brake lining 3 '.

Examples of variants of recovery elements for the rear brake lining 3 'are shown in FIGS. 16 and 17.

Figure 16 shows a schematic perspective view of the pressure side 4b of the lining support plate 4 of the brake lining 3 'from the rear side in its associated lining compartment in the brake backing plate 6 between the plate horns. brake support 25. Furthermore, the lining retaining bracket 16 is shown with its retaining end 16b on the rear side, the retaining end 16b being provided with the clip 18a and the securing element 17 (not explained in more detail ).

The recovery element 62 comprises a central section 63 with two connecting sections 63a, two spring arms 64 with in each case a spring end 64a, two additional connecting sections 65 and two additional spring arms 66 with in each case a staple end 66a.

The central section 63 is arranged in a lower edge area of the pressure side 4b of the liner support plate 4 and is essentially curved like this area. At each end of the rounding, the central section 63 has the connecting section 63a on both sides.

On the connection section 63a in the lower area one of the spring arms 64 is in each case arranged. Each spring arm 64 extends in a tangential direction with respect to the brake disc 2 to one side of the respective bearing plate horn brake 25, the respective spring end 64a being positioned on a side surface of the respective brake backing plate horn 25.

Above each spring arm 64, in each case one of the further connecting sections 65 is connected with an arm 65a to the respective connecting section 63a. The arms 65a extend in each case in parallel with respect to the spring arms 64 on the pressure side 4b from the associated connecting section 63a to the respective lateral edge of the lining support plate 4 and become the section of associated connection 65.

The connecting sections 65 are adapted to the outer shape of the corner areas of the lining support plate 4, widened diagonally towards the center of the lining support plate 4 and rounded and in each case turned upwards into the spring arm 66.

Each spring arm 66 extends along a lateral area of the liner support plate 4 on the pressure side 4b to an inclined upper side section 4d of the liner support plate 4. Each upper end of the arms Spring 66 is provided with one of the staple sections 66a, which are fixed in each case to the liner support plate 4 so as to surround an inclined side section 4d.

It is also possible that the center section 63 is fixed to the liner support plate 4 with one or more, for example, staple sections, not shown.

In this way, the recovery element 62 is placed, on the one hand, on the lining support plate 4 of the brake lining 3 'on the rear side through the staple sections 66a of the spring arms 66 and, by the other hand, it is stationary immobilized on the brake backing plate horns 25 through the spring arms 64 with their spring ends 64a. This fixing can also already cause a pretensioning of the recovery element 62.

During a braking process, the recovery element 62 is tensioned as explained above and exerts traction forces on the lining support plate 4 by means of attachment to it for the recovery of the brake lining 3 'from the rear side. moving away from the brake disc 2 after a braking process.

FIG. 17 represents a sectional view in a plane, running through the axis of rotation of the brake disc 2a, of the disc brake with the brake lining 3 'on the rear or outer side with an additional recovery element 67 .

The recovery element 67 is configured in the form of a leaf spring with a spring body 68 with in each case a spring end 68a, 68b. The one spring end 68a is hinged in a lower area of the back side liner support plate 4 on its pressure side 4b over a retaining bracket 39. The other spring end 68b is clawed, in a design suitable, in a retaining section 12a of the rear of caliper 12 of the brake caliper 1. It is possible that the recovery element 67 is provided centrally, or two of these recovery elements 67, are provided in a distributed manner in the corners or even several along the lower area of the liner support plate 4.

Figure 18 shows a schematic sectional view of a further variant of the second functional group of the separation device 8, a recovery element 69 in a sectional view in a plane, which runs through the axis of rotation of the brake disc 2a, of the disc brake with brake linings 3, 3 '.

In this variant, the return element 69 is arc-like with two spring arms 71, 72 opposed in the form of a spring, for example a leaf or / and wire spring. Each spring arm 71, 72 is positioned with its upper end in each case on a central section 70 through a connecting arc 70a, 70b. The central section 70 of the retrieval element 69 is fixed to the central section 26a of the retaining arch 21 of the separation equipment 8, being bent, for example, around the central section 26a.

From a lower end of each connecting arc 70a, 70b, each spring arm 71, 72 extends downward in the direction of the axis of rotation of the brake disc 2a towards the area of the underside of each brake lining 3. Each The spring arm 71, 72 has a free end with, in each case, a pressure leg 71a, 72a and is arranged in each case in an elongated interspace between the friction lining 5 and the lining side 4b of the pressure plate. liner support 4, the pressure legs 71a, 72a in each case being in contact with the respective liner support plate 4.

In this embodiment, the spring arms 71, 72 of the recovery element 69 exert in each case a compression force in the direction of the axis of rotation of the brake disc 2a away from the brake disc 2 pointing towards the brake linings 3 , 3 ', whereby the brake linings 3 are subjected to a force after each braking process by the spring arms 71, 72 of the recovery element 69 in addition to the spring arms 20 of the separating device 8 in the area lower for a recovery.

Figure 19 shows a schematic partial sectional view of the disc brake 10 according to the invention according to Figure 1 with guide elements 73.

Each guide element 73 has a fixing section 73a and a guide section 73b fixed thereto. The fixing section 73a is configured as a flange type and, on its lower side, it first becomes an arm 73c, curved from a plane of the fixing section 73a, of the guide section 73b. In this case, the arm 73c is bent upwards by approximately 45 °. On the free end of the downwardly curved arm 73c is placed an end section 73d, which is bent upward approximately 90 ° from a plane of the arm 73c in the same bending direction as the arm 73c, a bearing section 73e being formed. .

The guide elements 73 are positioned in the lower area of each lining support plate 4 of the brake linings 3, 3 'in such a way that their bearing sections 73d rest on the respective lining compartment bottom 6d (see also figure 11). In this regard, the fixing sections 73a are fixed in each case to the pressure side 4b of a respective lining support plate 4 by means of a fixing element 74, for example a rivet. It is possible that on each liner support plate 4 a guide element 73 is arranged in a distributed manner in the center or several guide elements 73 along the liner support plate 4.

The guide elements 73 enlarge a bearing surface of the respective lining support plate 4 on the lining compartment bottom 6d in the direction of the axis of rotation of the brake disc 2a. In this respect, the elements of Guide 73 do not exert any force on the associated brake linings 3, 3 ', but instead give the brake linings 3, 3' in each case a certain preferential direction to avoid an inclination of the brake linings 3, 3 'when the brake linings 3, 3 'are pushed back, for example, by means of the spring arms 20 of the separating device 8 by their force action on the upper side of the lining support plates 4 after a process of braking, as already explained above.

The invention is not restricted by the exemplary embodiments described above. It can be modified within the framework of the appended claims.

REFERENCE LIST

1 brake caliper

2 Brake disc

2nd axis of rotation of brake disc

3.3 'Brake lining

4 Liner support plate

4th Side lining

4b Pressure side

4c Support surface

4d, e Lateral section

5 Friction lining

6 Brake backing plate

6th fixing side

6b Bearing housing

6c Jumper connector

6d Lining compartment bottom

7 Lining retention spring

8 Separation equipment

9 Opening

10 Disc brake

11 Clamping section

12 Back of caliper

12th Retention Section

13 Drawbar

14, 15 Retention section

16 Lining retention bracket

16a, 16b Retaining end

17 Assurance element

18 Staple element

18th Staple

19 Bottom plate

20 Spring arm

20th pressure section

20b Connection section

20c Hood connector

20d End section

20e Support surface

21 Retaining arch

21st Stirrup

21b Assurance

22 Elongated hole

23 Longitudinal connector

24 Pin

25 Brake Backing Plate Horn

25th Drilling

26 Center leg

26th Central Section

26b Widening

26c Assurance element

26d Slot

End leg

a Fixing section End section Tab

Stem

Projection

Retaining stem Bracket

a Notch

Medium

Retention bracket to Leg

Medium

a Retention opening, 38, 39 Retention bracket a, 38a, 39a Retention opening Retaining element Center section

Spring arm Clamping section

Tab

a Fixing hole Spring arm

a Central section

b End section Recovery element Spring arm

a Clamping end b Connection

Spring arm

a Connection

Fixing section

a Opening

Recovery element 56 Longitudinal member a, 51a, 56a Clamping section

, 53, Cross connector Spring body Longitudinal member a Cross connector b, 58c End section Retaining device a Retaining section b Retaining tab Spring body

a End section b Fixing section Spring plate

a End section b Fixing section Retrieval element Center section

a Connection section Spring arm

a Spring end Connection section a Arm

Spring arm

a Staple end Retrieval element 68 Spring body

68a Clamping end 68b Claw end

69 Recovery element 70 Central section

70a, 70b Connecting arch

71, 72 Spring arm

71a, 72a Pressure leg

73 Guide element

73rd fixing section

73b Guide Section

73c Arm

73d End section 73e Support section

74 Fastening element AS Outlet side

EN Entrance side

Claims (31)

1. Disc brake (10) for a utility vehicle, with a brake caliper (1) surrounding a brake disc (2), configured as a disc caliper, which is fixed to a brake backing plate (6) stationary and has a central opening (9) above the brake disc (2), two brake linings (3, 3 ') arranged on the brake caliper (1), movable in the opposite direction, each having a lining support plate (4) and a friction lining (5) fixed thereon, of which a brake lining (3) on the action side or on the clamping side can be pressed by means of a clamping device. clamping through at least one brake piston against the brake disc (2), as well as at least one recovery equipment, with which the brake caliper (1) can be returned after a related brake displacement and release with braking, the recovery equipment presenting a separation equipment (8) that engages in the opposite brake linings (3), which acts a formally against the respective clamping direction with spring spacer elements engaging the respective liner support plate (4), the separating equipment (8) being arranged in the central opening (9), engaging the separating elements directly or indirectly outside the friction linings (5) in at least two contact areas of the brake linings (3) arranged spaced from one another with respect to the center, the contact areas having in each case a contact surface and a bearing surface (4c), on which the separating elements are movably arranged, characterized by what The separation equipment (8) has spring arms (20), of which two in each case bear against an associated lining support plate (4), the spring arms (20) being connected to each other in the central area of the opening (9), the spring arms (20) being connected with a retaining arch (21), which is positioned on the brake support plate (6), the spring arms (20) being configured ) as two pairs of spring arms (20), the pairs being arranged opposite each other in the transverse direction of the opening (9) so that the inner ends, pointing towards the center of the opening (9), are fixed to the retention arch (21), their outer free ends interacting with the lining support plate (4) of the brake linings (3, 3 '), the inner ends of each pair of spring arms (20 ) in each case to a sleeve-shaped bell connector (20c), the bell connector ( 20c) around a central section (26a) of the retaining arch (21) and being rotatably and movably positioned in the central section (26a), which has a circular cross section, each spring arm (20) being configured, on the end side, with a pressure section (20a), which is configured in its longitudinal direction with an elongated hole (22), which is a guide section of the pressure arm. spring (20) of the separation equipment (8), each pressure section (20a) resting in each case on a support surface (4c) of a respective lining support plate (4), the elongated holes (22) interacting of each pressure section (20a) in each case with a contact surface of the lining support plate (4), a pin (24) having fixedly connected to the lining support plate (4) presenting the surface of contact, which interacts with the respective elongated hole (22), of the lining support plate (4), the bearing surfaces (4c) running in each case tangentially with respect to the brake disc (2) and meeting in a plane. 2. Disc brake (10) according to claim 1, characterized by what the separating elements extend starting from a central area in the center of the opening (9) from the inside out to the contact areas arranged at a distance from each other with respect to the center. 3. Disc brake (10) according to claim 2, characterized by what the separating elements extend from a central area in the center of the opening (9) from the inside out to the contact areas arranged evenly spaced from one another with respect to the center. Disc brake (10) according to claim 2 or 3, characterized by what The central area of the opening (9) extends on both sides of a virtual center of the opening (9) approximately parallel to the plane of the brake disc (2) over a length in a range of 30 to 50% of a longitudinal axis of the opening (9). Disc brake according to one of the preceding claims, characterized by what The retention arch (21) is connected to two brake backing plate horns (25) that delimit a lining compartment, the retention arch (21) being molded in a C-shape with two opposite end legs (27) as well as a central leg (26). 6. Disc brake according to claim 5, characterized by what The end legs (27) each have a flange (29), in which rods (30) of the brake support plate horns (25) are inserted. 7. Disc brake according to claim 6, characterized by what The end legs (27) have in each case a fixing section (27a), which is inserted and fixed in housings, corresponding to the fixing section (27a), in the respective brake support plate horn ( 25). Disc brake according to one of the preceding claims, characterized by what the separation device (8) has at least one additional recovery element (40, 46, 50, 62, 67, 69), which, in addition to the point of attack / points of attack of the spring arms (20) , meshes at a further point of attack on the respective lining support plate (4) of a brake lining (3, 3 '). 9. Disc brake according to claim 8, characterized by what the at least one recovery element (40) with a section in a lower area of the lining support plate (4) of a brake lining (3) of the clamping side on a pressure side (4b) of the plate liner support (4) is fixed to a retention rod (32), the at least one recovery element (40) with an additional section being positioned in a lower area of a bottom plate (19) of a section of clamping (11) of the brake caliper (1). 10. Disc brake according to claim 9, characterized by what The at least one recovery element (40) is configured as a spring element with a central section (41, 45a), two spring arms (42, 45), two fixing sections (43) with in each case a flange (44) in a U-shape, the central section (41) being fixed to the retaining rod (32) of the liner support plate (4), and each spring arm (42) being positioned with the fixing section ( 43) on the bottom plate (19). Disc brake according to claim 10, characterized by what The center section (45a) and the two spring arms (45) are formed by a spring wire, the center section (45a) being attached to a bracket (33) in a lower area of the liner support plate (4 ). 12. Disc brake according to claim 8, characterized by what The at least one retrieval element (46) comprises a first spring arm (47) with a clamping end (47a) and a connection, a second spring arm (48) with a connection (48a) and a fixing section (49) with an opening (49a), the first spring arm (47) being fixed on the pressure side (4b) of the lining support plate (4) of the brake lining (3) on the clamping side with its clamping end (47a) to a support (34), the second spring arm (48) being connected through a connection (47b) to the first spring arm (47) and being arranged parallel to it, and the fixing section (49) with its opening (49a) being fixed in front of an opening of a bearing housing (6b) of the brake backing plate (6) coaxially thereto between the brake backing plate (6) and a brake caliper bearing strut (1). Disc brake according to claim 8, characterized by what The at least one recovery element (50) is centrally arranged as a central recovery element (50) in the vertical direction on the pressure side (4b) of the lining support plate (4) of the brake lining (3 ) from the clamping side and is fixed to both the upper side and the lower side of the liner support plate (4), a stationary fixation of one end of the recovery element (50) being formed centrally in a bridge connector ( 6c) from the clamping side of the brake backing plate (6). Disc brake according to claim 13, characterized by what the at least one central retrieval element (50) has two lateral longitudinal members (51) arranged in parallel with respect to each other, the upper ends of which as clamping sections (51a) firmly grip the upper side of the plate as staples liner support (4), the two longitudinal members (51) being provided at their lower ends with clamping sections (51b), which firmly grip the lower side of the liner support plate (4) like staples, the longitudinal members (51) being connected in their upper area by means of a transverse connector (52), and in their lower area being connected in each case by means of a transverse connector (53) to in each case a longitudinal member (54 ) additional, the two longitudinal members (54) extending upwards in each case in parallel with respect to the outer longitudinal members (51) and being connected at their upper ends to a transverse connector (55), in which is positioned a central longitudinal member (56) and extends parallel to the other longitudinal members (51, 54) downward beyond the clamping sections (51b) and ends in its own clamping section (56a) , which is immobilized in the bridge connector (6c) on the clamping side of the brake backing plate (6). Disc brake according to claim 8, characterized by what The at least one recovery element (50) is centrally arranged as a central recovery element (50) in the vertical direction on the pressure side (4b) of the lining support plate (4) of the brake lining (3 ) of the clamping side and is fixed in an area of the lower side of the liner support plate (4), a stationary fixing of one end of the central recovery element (50) being formed at a retention end (16a) of the clamping side of a lining retaining bracket (16). 16. Disc brake according to claim 15, characterized by what The at least one central recovery element (50) has a spring body (57) in the form of a wire with two longitudinal members (58) arranged in parallel with respect to each other, the longitudinal members (58) being connected by means of a transverse connector (58a), the transverse connector (58a) being retained in the lower area of the liner support plate (4), and end sections (58b, 58c) of the longitudinal members (58) of the body being positioned spring (57) through a retaining device (59) at the retaining end (16a) of the clamping side of the liner retaining clip (16). 17. Disc brake according to claim 15, characterized by what The at least one central recovery element (50) has a spring body (57) in the form of a wire with two longitudinal members (58) arranged in parallel with respect to each other, the longitudinal members (58) being connected by means of a transverse connector (58a), the transverse connector (58a) being retained through a retainer (59) and end sections (58b, 58c) of the longitudinal members (58) of the spring body (57) being retained in the lower area of the liner support plate (4). 18. Disc brake according to claim 15, characterized by what The at least one central retrieval element (50) has a wire-shaped spring body (60) with an end section (60a) and a fixing section (60b), the end section (60a) being retained in the lower area of the liner support plate (4) and the fastening section (60b) being positioned at the retaining end (16a) of the fastening side of the liner retaining bracket (16). 19. Disc brake according to claim 15, characterized by what The at least one central retrieval element (50) has a spring plate (61) with an end section (61a) and a fixing section (61b), the end section (61a) being retained in the lower area of the liner support plate (4) and the fastening section (61b) being positioned at the retaining end (16a) of the fastening side of the liner retaining bracket (16). 20. Disc brake according to claim 8, characterized by what The at least one recovery element (62) is fixed with a section in a lower area of the lining support plate (4) of the brake lining (3 ') from the rear side on the pressure side (4b) of the Lining support plate (4), the at least one recovery element (62) interacting with an additional section with a brake support plate horn (25) of the stationary brake support plate (6). 21. Disc brake according to claim 20, characterized by what The recovery element (62) comprises a central section (63) with two connecting sections (63a), two spring arms (64) with in each case a spring end (64a), two additional connecting sections (65) and two additional spring arms (66) with in each case a staple end (66a), the central section (63) being arranged with the connecting sections (63a) positioned to the left and right of it and the clamping arms. springs (64, 65a) positioned in each case in this in a lower edge area on the pressure side (4b) of the lining support plate (4), the additional connecting sections (65) being arranged in the areas corner corners on the pressure side (4b) of the lining support plate (4) and being connected to the additional vertical spring arms (66), each extending in a lateral area on the pressure side (4b) of the lining support plate (4), the clamp ends (66a) of each arm being fixed of additional spring (66), such that they surround an inclined lateral section (4d), to the lining support plate (4), and the spring ends (64a) being in contact in each case with a plate horn of brake support (25). 22. Disc brake according to claim 8, characterized by what The separating device (8) has at least one additional recovery element (67), which is arranged between a lower area of the lining support plate (4) of the brake lining (3) on the rear side and a part rear caliper (12) from the brake caliper (1). 23. Disc brake according to claim 22, characterized by what The at least one further recovery element (67) is configured as a leaf spring type with a spring body (68) with in each case a spring end (68a, 68b), the one spring end ( 68a) in a lower area of the liner support plate (4) from the rear side on its pressure side (4b) to a retaining bracket (39) and the other spring end (68b) being hinged to a section of retention (12a) of the rear caliper (12) of the brake caliper (1). 24. Disc brake according to claim 8, characterized by what The separation device (8) has at least one additional recovery element (69) with two opposite spring arms (71, 72), each spring arm (71, 72) being positioned with its upper end in each case in a central section (70) through a connecting arch (70a, 70b), the central section (70) of the recovery element (69) being fixed to a central section (26a) of the retention arch (21) of the separation (8), and in each case a free end of each spring arm (71, 72) being in contact with in each case a pressure leg (71a, 72a) with the respective lining support plate (4) of each brake lining (3, 3 '). 25. Disc brake according to claim 24, characterized by what The spring arms (71, 72) with their pressure legs (71a, 72a) are arranged in each case in an elongated interspace between a friction lining (5) and a lining side (4b) of the respective pressure plate. lining support (4), the pressure feet (71a, 72a) being in contact in each case with the lining side (4b) of the respective lining support plate (4) and each exerting a compression force on the brake linings (3, 3 ') in the direction away from the brake disc (2). Disc brake according to one of the preceding claims, characterized by what In the lower area of each lining support plate (4) there is provided at least one guide element (73), which has a fixing section (73a) and a guide section (73b) fixed thereto with a section support (73e), the at least one respective guide element being fixed to the fixing section (73a) on the pressure side (4b) of the respective lining support plate (4) in such a way that the respective section Support (73e) rests on the respective liner compartment bottom (6d). 27. Brake lining set for a disc brake (10) for a utility vehicle, with a brake caliper (1) surrounding a brake disc (2), configured as a disc caliper, which is fixed to a plate brake support (6) stationary and has a central opening (9) above the brake disc (2), as well as at least one recovery device, with which the brake caliper (1) can be returned after a brake travel and release related to braking, the brake lining set having at least two brake linings (3, 3 ') with in each case a lining support plate (4) and a friction lining (5) positioned on the lining support plate (4 ), and a separation equipment (8), the separation equipment (8) presenting spring arms (20), the spring arms (20) being connected to a retention arch (21) that can be placed on the plate brake support (60), the spring arms (20) being configured as two pairs of spring arms (20), which are arranged opposite each other so that they are fixed with inner ends to the retaining arch (21), the inner ends of each being connected pair of spring arms (20) in each case to a sleeve-shaped bell connector (20c), the bell connector (20c) being bent around a central section (26a) of the retaining arch (21) and being rotatably and displaceably positioned in the central section (26a), which has a circular cross section, being configured each spring arm (20), on the end side, with a pressure section (20a), which is configured in its longitudinal direction with an elongated hole (22), which is a guide section of the spring arm ( 20) of the separation equipment (8), the lining support plates (4) presenting outside the friction linings (5) in at least two contact areas arranged at a distance from each other with respect to the center in each case a surface contact and a support surface (4c), a pin (24) being fixedly connected to the lining support plate (4) at each end of a liner support plate (4) and one end of the pin (24) protruding from the liner support plate ( 4), and the end of the pin (24) extending through the associated elongated hole (22) of the respective pressure section (20a) of a spring arm (20) of the separation equipment (8). 28. Brake lining set according to claim 27, characterized by what The lining support plate (4) of a brake lining (3) on the clamping side is provided with at least one recovery element (40, 46, 50). 29. Brake lining set according to claim 27 or 28, characterized by what The lining support plate (4) of a rear side brake lining (3) is provided with at least one recovery element (62, 67). 30. Brake lining set according to claim 27, characterized by what In each case an elongated interspace is arranged between a friction lining (5) and a lining side (4b) of the respective lining support plate (4). 31. Brake lining set according to one of claims 27 to 30, characterized by what The lining support plates (4) are provided, in the lower area on their pressing sides (4b), with at least one guide element (73).